Annual rainfall
2103 mm
Chattogram climate: the whole year
2020–2024 averages
Chattogram averages about 2,103 mm of rain a year — 27th of 64 districts, close to the national average. Most of it falls around August, while February is nearly dry (4 mm). April is the hottest month (average highs of 32.1°C; the hottest day of 2020–24 hit 39°C in April) and January the coolest (average lows of 14.8°C; coldest night 11.2°C in January). A typical year has about 4 days at or above 35°C. Worth knowing: coastal district — cyclone risk in April–May and October–November. The most comfortable months to visit are January, February, November, December.
Rainfall rank (of 64)
27 / 64
Wettest month
August
Driest month
February
Hottest month
April · 32.1°
Coolest month
January · 14.8°
Best months to visit
January, February, November, December
Month by month
| Months | High / Low | Rainfall | Rainy days | Sunshine / day |
|---|---|---|---|---|
| January | 24.4° / 14.8° | 16 mm | 2 | 9.6 |
| February | 26.5° / 16.1° | 4 mm | 1 | 9.9 |
| March | 30.7° / 20.8° | 17 mm | 4 | 10.2 |
| April | 32.1° / 24.9° | 44 mm | 7 | 10.9 |
| May | 31.4° / 25.5° | 182 mm | 18 | 10.2 |
| June | 29.8° / 25.8° | 400 mm | 26 | 7.7 |
| July | 29.9° / 25.9° | 366 mm | 28 | 7.7 |
| August | 29.5° / 25.5° | 527 mm | 29 | 6.6 |
| September | 30.1° / 25.6° | 332 mm | 26 | 8.4 |
| October | 30.4° / 24.6° | 155 mm | 15 | 9.5 |
| November | 28.8° / 20.6° | 37 mm | 2 | 10.2 |
| December | 25.8° / 16.7° | 23 mm | 2 | 9.4 |
When is the best time to visit Chattogram?
January, February, November, December — dry and comfortable with little rain. Avoid the April heat and the August rains.
Which month is the wettest in Chattogram?
August — about 527 mm over 29 rainy days. The driest is February (4 mm).
Which month is the hottest in Chattogram?
April — average highs of 32.1°C, peaking at 39°C in 2020–24. The coolest is January, with average lows of 14.8°C.
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